Untrusted search path vulnerability in Flexera InstallShield through 2015 SP1 allows local users to gain privileges via a Trojan horse DLL in the current working directory of a setup-launcher executable file.
https://www.tenable.com/security/tns-2019-08
https://www.oracle.com/security-alerts/cpuApr2021.html
https://us-cert.cisa.gov/ics/advisories/icsa-20-287-03